Subaru IMPREZA 2002 Service Manual page 412

BRAKE BOOSTER
BRAKE
Boosting action check
Set the vacuum gauge reading at 66.7 kPa (500
mmHg, 19.69 inHg) by running engine. Then,
check the fluid pressure when brake pedal is de-
pressed. The pressure must be greater than the
standard value listed.
force
Fluid
pres-
sure
5,688 kPa
Turbo
BR-42